Royalty runs in me

At the age of 19 Ava is known the nation's greatest female assassin. She'd kill without hesitation. She was trained an assassin since a young age when her mother left her in the rough mountains where an ancient master found her. Since then she'd been sent to the roughest places to train and become the strongest and fear fullest assassin anybody has seen. But she was killed in a mission which her partner betrayed her. Ava was reincarnated back to the past where magic and mortals ruled . She was reincarnated as the youngest princess and sibling of the royal mortal kingdom, Violet. Violet was a forgotten child who was abused and neglected by her parents, the king and queen, and her four other siblings. She died because of them. However Ava is going to change that.